Texas Instruments CLVC16T245MDGGREP

Overview

CLVC16T245MDGGREP from Texas Instruments is a 16-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs, designed for bidirectional level-shifting between 1.65-V to 5.5-V domains. It features two independent 8-bit sections (A/B), VCC isolation, Ioff partial-power-down support, and operates across –55°C to 125°C - enabling robust mixed-voltage interconnect in aerospace data buses.

For engineers reviewing the CLVC16T245MDGGREP datasheet, CLVC16T245MDGGREP pinout, CLVC16T245MDGGREP application, or CLVC16T245MDGGREP equivalent, key selection criteria include dual-rail voltage flexibility (VCCA/VCCB = 1.65–5.5 V), guaranteed high-impedance on power loss, overvoltage-tolerant I/Os up to 6.5 V, and military-grade temperature performance.

Technical Context

The CLVC16T245MDGGREP implements asynchronous bidirectional data flow via per-section DIR and OE controls referenced to VCCA. Each 8-bit port (A and B) tracks its respective supply rail, enabling simultaneous operation at different voltages - e.g., A port at 1.8 V and B port at 3.3 V - without external logic or level-shifters.

Its VCC isolation feature forces both ports into high-impedance when either VCCA or VCCB is at GND, preventing backdrive during power sequencing. The Ioff circuitry limits off-state current to ±10 µA, supporting safe partial-power-down in systems with staggered supply activation.

Key Specifications

Pinout & Package

TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm body, 0.5-mm lead pitch, 1.2-mm max height, JEDEC MO-153 compliant. RoHS-compliant NiPdAu lead finish, MSL Level-1 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply bus transceiver applications.

Compared with SN74LVC16T245QPWREP and SN74AVC16T245ZQLR, CLVC16T245MDGGREP uniquely combines military temperature range, VCC isolation, and TSSOP manufacturability - making it the sole choice for defense/aerospace programs requiring traceable, extended-lifecycle components in standard surface-mount packages.

Availability

CLVC16T245MDGGREP is available at Aetrix Electronics and suitable for avionics data buses, satellite onboard computers, defense radar backplanes, and medical imaging sensor hubs requiring stable component supply across extended temperature and long product lifecycles.

Supply support for CLVC16T245MDGGREP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity technologies for industrial, automotive, and aerospace markets.

The CLVC16T245MDGGREP belongs to TI's enhanced-product (EP) logic family, engineered specifically for high-reliability applications demanding extended temperature operation, controlled manufacturing baselines, and full traceability - targeting defense, space, and critical medical systems.

FAQ

What is the maximum allowable voltage on CLVC16T245MDGGREP I/O pins when VCCA = 0 V?

The CLVC16T245MDGGREP supports overvoltage-tolerant inputs and outputs up to 6.5 V regardless of supply state. When VCCA = 0 V, the A-port I/Os remain tolerant to –0.5 V to 6.5 V, and B-port I/Os tolerate –0.5 V to 6.5 V relative to their own VCCB. This allows safe hot-insertion and mixed-voltage system interoperability even during power-down sequences.

Does CLVC16T245MDGGREP support true bidirectional data flow on the same pin pair?

Yes. CLVC16T245MDGGREP enables true bidirectional data transfer on each A/B pin pair (e.g., 1A1 ↔ 1B1) using separate DIR and OE controls per 8-bit section. Direction is determined dynamically by the DIR input state, and OE independently enables/disables output drivers - allowing seamless A→B or B→A communication without external bus arbitration logic.

How does the VCC isolation feature function in CLVC16T245MDGGREP during power-up sequencing?

In CLVC16T245MDGGREP, if either VCCA or VCCB is at GND (or unpowered), both A and B ports automatically enter high-impedance mode - regardless of DIR or OE states. This eliminates risk of back-driving powered rails during asymmetric power-up, a critical requirement for MIL-STD-704-compliant avionics and radar systems.

What is the recommended pull-up resistance for OE pins on CLVC16T245MDGGREP to ensure Hi-Z during power-up?

TI recommends tying OE pins to VCCA through a pull-up resistor to guarantee high-impedance state at power-up. Minimum value is determined by the driver's current-sinking capability; for CLVC16T245MDGGREP, a 10-kΩ resistor is sufficient to maintain OE > VIH (VCCA × 0.7) while limiting current to < 100 µA during startup transients.

Is CLVC16T245MDGGREP pin-compatible with commercial-grade SN74LVC16T245?

Yes. CLVC16T245MDGGREP shares identical pinout, functionality, and AC/DC specifications with the commercial SN74LVC16T245, but adds enhanced reliability features: extended –55°C to 125°C operation, controlled baseline manufacturing, full traceability, and qualification per V62/12667-01XE - all in the same TSSOP-48 (DGG) package.